Alexander mckerlie



(No Model.)

v A. MQKERLIE. V DEVICE FOR PREVENTION OF ACCIDENTS ON STREET CARS, &c.

No. 525,055. Patented Aug. 28, 1894.

rmz' ucnms Perms no Pucmum, wnsmuuron. n. c.

UNITED STATES PATENT OFFICE. I

ALEXANDER MCKERLIE, OF HAMILTON, CANADA.

DEVICE PREVENTION OF ACCIDENTS ON STREET-CARS, 89G.

SPECIFICATION forming part of Letters Patent No. 525,055, dated August28, 1894.

Applicationfiled August 30,1893. SrialNoAB lAOS. (No model.)

ToaZZ whom it may concern.-

Be it known that I, ALEXANDER MCKERLIE, a subject of the Queen of GreatBritain, residing at Hamilton, in the county of Wentworth, in theProvince of Ontario, in the Dominion of Canada, have invented a new anduseful Device to be Used on Electric Street- Cars or to Clean. Snow fromthe Track, of which the following is a specification.

My invention substantially consists of the mechanism hereinafterdescribed and claimed, and the objects of my improvements are, first, toprovide the lower front end of a car with a revolving brush that shallbe capa ble of revolving in an opposite direction to the wheels of car,and extending across the track, at an angle, to prevent accidents;second, to provide means for the removal of the said revolving brush,and to substitute therefor a revolving snow cleaner in similar positionon the car, or a steam engine, and third, to afford facilities for theproper elevation and propulsion of said brush and cleaner. I attainthese objects by the mechanism illustrated in the accompanying drawings,in which- Figure 1 is an outlined side elevation of the fore part of anelectric street car, provided with the said accident preventative deviceattached to the rigid metallic frame thereof. Fig. 2 is a plan of thedevice showing how attached to said rigid frame of car, and manner ofpropulsion. Fig. 3 is an enlarged section of the four-armed snowcleaner, as it appears detached. Fig. 4 shows the outlines of thedriving belt or chain, crossed and in side elevation, from the car wheelaxle to the through shaft of the roller brush or the snow cleaner.

Similar letters and figures refer to similar parts throughout theseveral views.

The electric street car, as shown broken, is indicated by A, its Wheelsby B, axles by O, rails by D, and its metallic frame by E. To the outersides of this frame are bolted the two arms, F, at 2, and at their innerends, vertical slots, 3, are provided, that by this means, the outer orfront ends may be elevated or lowered on their central pivot, 2, to meetcontingencies. The front ends of said side arms are twisted and bent toform bearings, H, with caps, H, for the shaft, I, which carries eitherthe brush, J, or the cleaner, K.

The side arms, F, might be altered somewhat in shape and bolted to theinner side or front ends of frame to suit cars differing inconstruction. The said roller brush may be made of soft pliable materialsuitable for the purpose of preventing a person being struck by the car.And in seasons of much snow, the

said roller brush may be removed with its shaft, and the four-armedcleaner substituted therefor. This cleaner is constructed with arms, m,in such a manner as to admit the blades, n, composed of rubber ormaterial of like nature, and securely fastened therein by the bolt, 4.The said blades may be moved farther out from the center in case ofwear. This device is propelled by means of chain wheel, 0, secured oncar axle or to car wheel, and the chain wheel, P, secured on shaft, I,and connected by chain belt, S, said belt being crossed in order torevolve the brush or cleaner, in an outer and upper direction, asaforesaid. To facilitate the Working of said belt, on account of thebrushand cleaner be ing at an angle to the line of rails and car, avertical guide roller, T, is provided to press against the lower part ofbelt as it enters upon its wheel, P, in order to retain said belt inproper position. This roller operates in its bent support, U, attachedto arm, F, at 5, said support extending from arm to arm, if requisite.Either the revolving brush, or revolving cleaner may be appropriatelyused either as an accident preventative or for cleaning snow.

What I claim as my invention, and desire to secure by Letters Patent, is

The front projecting side arms F, pivoted at 2, and secured at 3, toeach side of the rigid frame of car, each said arm having a frontbearing H, provided with a cap H, the through angle shaft I, in saidbearings, provided with brush roller or blades at each side of acentrally located chain wheel P, the chain guide roller T, in itssupport and bearings U, secured to said frame F at 5, in combinationwith the chain wheel 0, secured to axle O, or to drive Wheel B, of car,and the chain belts, engaging with said chain wheels, substantially asdescribed and set forth.

ALEXANDER MOKERLIE. Witnesses:

J OHN H. HENDRY, R. G. OLMSTED.

